Add support for grabbing Packages files using external programs.

pym/portage/getbinpkg.py

 # getbinpkg.py -- Portage binary-package helper functions
 # Copyright 2003-2004 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 from portage.output import colorize
 from portage.cache.mappings import slot_dict_class
 from portage.localization import _
 import portage
 from portage import os
 from portage import _encodings
@@ skipping 413 matching lines @@
                 del xpak_data
         else:
                 myid = None,None
 
         if not keepconnection:
                 conn.close()
 
         return myid
 
 
-def file_get(baseurl,dest,conn=None,fcmd=None):
+def file_get(baseurl,dest,conn=None,fcmd=None,filename=None):
         """(baseurl,dest,fcmd=) -- Takes a base url to connect to and read from.
         URI should be in the form <proto>://[user[:pass]@]<site>[:port]<path>"""
 
         if not fcmd:
                 return file_get_lib(baseurl,dest,conn)
+        if not filename:
+                filename = os.path.basename(baseurl)
 
         variables = {
                 "DISTDIR": dest,
                 "URI":     baseurl,
-                "FILE":    os.path.basename(baseurl)
+                "FILE":    filename
         }
 
         from portage.util import varexpand
         from portage.process import spawn
         myfetch = portage.util.shlex_split(fcmd)
         myfetch = [varexpand(x, mydict=variables) for x in myfetch]
         fd_pipes= {
                 0:sys.stdin.fileno(),
                 1:sys.stdout.fileno(),
                 2:sys.stdout.fileno()
@@ skipping 395 matching lines @@
                                         if v is not None and v == metadata.get(k):
                                                 del metadata[k]
                         if self._default_pkg_data:
                                 for k, v in self._default_pkg_data.items():
                                         if metadata.get(k) == v:
                                                 metadata.pop(k, None)
                         keys = list(metadata)
                         keys.sort()
                         self._writepkgindex(pkgfile,
                                 [(k, metadata[k]) for k in keys if metadata[k]])